Late onset of puberty in the male is defined as
**Core Concept**
Late onset of puberty in males refers to a delay in the normal progression of pubertal development, particularly in the onset of secondary sexual characteristics, such as testicular enlargement, beard growth, and deepening of the voice. This condition is also known as late-onset hypogonadism (LOH) or late-onset testosterone deficiency syndrome.
**Why the Correct Answer is Right**
The correct answer for late onset of puberty in males is **C. 17 years of age**. This is because the onset of puberty in males is typically defined as the age of testicular enlargement, which usually occurs between 9-14 years of age. However, if testicular enlargement does not occur until after 17 years of age, it is considered late onset of puberty. This delay in pubertal development can be due to various factors, including genetic, environmental, or hormonal causes.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it does not specify a particular age range for late onset of puberty.
**Option B:** This option is incorrect because it refers to a condition that is not directly related to late onset of puberty.
**Clinical Pearl / High-Yield Fact**
It is essential for physicians to accurately diagnose and manage late onset of puberty in males, as it can be associated with various health complications, including decreased fertility and increased risk of osteoporosis.
**Correct Answer:** C. 17 years of age